Change your calculator from deg or grad to rad
So, i have been doing some homework and i came across o problem i cannot understand...
"Find the angle θ in the right-angles triangle on the right, giving your answer in radians.
Now i calculated the angle with tan = 9/5 but it does not give the answer the book has....
So my question is, am i missing something or is the book wrong.(the answer it gives is 1.0637)
Thank you...